The Credo Sapphire Nail File with Two Surfaces is made of metal material and has a straight shape. This file is perfect for shaping natural nails, as well as correcting imperfections on acrylic or gel nails. With its double surface, it offers different levels of coarseness to meet your needs, from coarser to finer textures. Thanks to its sleek design, it is also suitable for use in pedicures.